Cover: Dick Dillin & Sheldon Moldoff

Detective Comics #296

Oct 1961 · DC · 0.10 USD

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“The Menace of the Planet-Master”

In "The Menace of the Planet-Master," Aquaman and Aqualad dive into danger when a terrifying Sea Demon terrorizes coastal fishermen, demanding jewels and treasures. Written by Jack Miller and illustrated with bold flair by Nick Cardy, this 1961 classic sees the heroes unravel the mystery behind the creature’s rampage—revealing a clever disguise and hidden technology. The cover by Dick Dillin and Sheldon Moldoff captures the eerie spectacle with striking detail.

writer Jack Miller · artist, inker Nick Cardy · cover Dick Dillin, Sheldon Moldoff

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Full credits

writer Jack Miller

artist, inker Nick Cardy

cover pencils Dick Dillin

cover inks Sheldon Moldoff

Full plot ⚠ may contain spoilers

▸ Reveal full plot — may contain spoilers

A Sea Demon (a reptilian humanoid carrying a trident and riding a giant seahorse), is forcing native fishermen to give it their jewels and valuables. Aquaman and Aqualad arrive on the scene and defeat the Demon, exposing it as a criminal skin-diver using a costume and technology.

Plot details indexed by the Grand Comics Database (CC BY-SA).